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Thread: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

  1. #1
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    19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    As the title says, I get this message when booting and shutting down, followed by some block numbers. I haven't done any major changes to the system, so I wonder where this comes from.
    It's not fatal in any way, but very annoying. It also turns up when doing a GRUB-menu boot, but then in low-res.

    How to get rid of it?

    Thank You.

  2. #2
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    Re: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    If it says clean plus numbers, that should only be the file check saying everything is good. If it says clear, hope someone else knows.

  3. #3
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    Re: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    Quote Originally Posted by crip720 View Post
    If it says clean plus numbers, that should only be the file check saying everything is good. If it says clear, hope someone else knows.
    Sorry, yes it says "clean" plus numbers. But I've not had this before and wonder where it comes from. Is there a setting to get rid of this?

    Thanks,

  4. #4
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    Re: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    fsck is set by entries in /etc/fstab to check the mounted filesystems every boot. Usually, you don't see the output, but it's recorded in the systemd journal:

    Code:
    [dmn@Tyana ~]$ journalctl -b | grep systemd-fsck
    Dec 07 16:02:52 Tyana systemd-fsck[698]: Fedora: clean, 357736/2244608 files, 5845104/8960000 blocks

  5. #5
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    Re: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    Quote Originally Posted by Dennis N View Post
    fsck is set by entries in /etc/fstab to check the mounted filesystems every boot. Usually, you don't see the output, but it's recorded in the systemd journal:

    Code:
    [dmn@Tyana ~]$ journalctl -b | grep systemd-fsck
    Dec 07 16:02:52 Tyana systemd-fsck[698]: Fedora: clean, 357736/2244608 files, 5845104/8960000 blocks
    Interesting.

    This is my fstab:

    Code:
      # <file system> <mount point> <type> <options> <dump> <pass>
    
     
    
     UUID=0f96d4bd-84f6-431e-8120-a4a89244ac8d    /    ext4    defaults,discard    0    1
     UUID=9f526df8-85d8-47cf-ac66-90a7e93ed117    none    swap    defaults    0    0
     tmpfs    /tmp    tmpfs    defaults,noatime,mode=1777    0    0
    Do you see anything here to trigger this behaviour?

    Thanks.

  6. #6
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    Re: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    In both Kubuntu 19.04 and 19.10 I'll see the output from the filesystem check on the screen briefly during boot. Its appearance has been a fairly recent phenomenon.
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  7. #7
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    Re: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    Quote Originally Posted by ml9104 View Post
    Interesting. Do you see anything here to trigger this behaviour?...
    Thanks.
    The last number in any line (the pass field) determines how fsck treats each file system. See man page for fstab for the full explanation of the values (enter man fstab in your terminal).
    Last edited by Dennis N; December 8th, 2019 at 06:51 AM.

  8. #8
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    Re: 19.04 - Keep getting "/dev/sda1: clear ..." message when booting. Why?

    Those lines are indeed output from the filesystem check. That check is supposed to happen, but the output should be hidden by the splash screen, but that doesn't always work very well. In fact, I've seen these lines appear during boot for over a year. My splash screen only shows for a handful of seconds during boot. I don't care, the splash screen serves no real purpose anyway.

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